是信号处理的基础，多抽样率信号处理，是国外的成品模型，通过matlab代码，现代信号处理中谱估计在matlab中的使用，预报误差法参数辨识-松弛的思想。- Is the basis of the signal processing, Multirate signal processing, Foreign model is finished, By matlab code, Modern signal processing used in the spectral estimation in m